594 RoBINSON: PTERIDOPHYTA OF THE HAWAIIAN ISLANDS 
ILLUSTRATION: PLATE 44. 
SPECIMENS EXAMINED: Kauai, E. Johnson (type) B; Hawaiian 
Islands, Hillebrand C. 
This very delicate fern is a miniature Dryopteris glabra (Brack.) 
Kuntze in form but is easily distinguished from this plant by its 
glandular exterior in addition to its small size. 
DRYOPTERIS SQUAMIGERA (Hook. & Arn.) Kuntze, Rev. Gen. PI. 
2: 813. I8ol 
Nephrodium squamigerum Hook. & Arn. Bot. Beech. 106. 1832. 
Lastraea squamigera Brack. Fil. U.S. Expl. Exp. 198. 1854. 
Aspidium squamigerum Mann, Proc. Am. Acad. 7: 217. 1868. 
TYPE LOCALITY: Kaala Mountains, Oahu. 
DisTRIBUTION: At elevations of 600-1,200 m., Hawaiian 
Islands, Viti Islands, Society Islands; rare. 
ILLUSTRATION: Hook. Sp. Fil. 4: 270. 1862. 
SPECIMENS EXAMINED: Oahu, Wilkes Expedition N; Kauai, 
Heller 2841 C, N; Lanai, Lichtenthaler N; Hawaiian Islands, 
Baldwin 70 C, N. 
Dryopteris hawaiiensis (Hilleb.) comb. nov. 
Aspidium hawatiense Hilleb. Fl. Haw. Is. 575. 1888. 
Dryopteris Filix-mas C. Chr. Ind. Fil. 265. 1905. 
TYPE LocaLity: Mauna Kea, Hawaii. 
DIsTRIBUTION: Hawaiian Islands. 
SPECIMENS EXAMINED: Hawaii, Mauna Kea, Hillebrand (type) 
B; Hawaii, Hamakua, Hillebrand B; Maui, Robinson 390 V; 395 Vi 
Oahu, Lichtenthaler N; Hawaiian Islands, ex Herb. John Donnell 
Smith N. 
DRYOPTERIS RUBIGINOSA (Brack.) Kuntze, Rev. Gen. Pl. 2: 813+ 
1891 
Lastraea rubiginosa Brack. Fil. U. S. Expl. Exp. 201. 1854. 
Nephrodium rubiginosum Hook. Sp. Fil. 4: 143. 1862. 
Aspidium rubiginosum Mann, Proc. Am. Acad. 7: 217. 1868. 
TYPE LOCALITY: Hawaiian Islands. 
DisTRIBUTION: Hawaiian Islands. 
SPECIMENS EXAMINED: Hawaii, Hillebrand B; Robinson 285 V; 
621 V; Wilkes Expedition (type) N; Molokai, Hillebrand B; 
